public class Test {
    public static void main(String[] args) {
        BinarySearchTree bs = new BinarySearchTree();

        bs.insert(60);
        bs.insert(40);
        bs.insert(90);
        bs.insert(10);
        bs.insert(45);
        bs.insert(70);
        bs.insert(120);
        //bs.insert(95);
        bs.remove(90);
        System.out.println("==");
    }
}
